Enter an atomic species:
Ar
Enter a cubic lattice type:
fcc
Enter a model name:
Morse_SigmoidalSmoothed_Jelinek_1972_Ar__MO_071460865933_002
Enter a lattice constant (m):
5.262299403548241e-10

Writing phonon.eq.pckl
Writing phonon.0x-.pckl
Writing phonon.0x+.pckl
Writing phonon.0y-.pckl
Writing phonon.0y+.pckl
Writing phonon.0z-.pckl
Writing phonon.0z+.pckl
WARNING, 1 imaginary frequencies at q = ( 0.00,  0.00,  0.00) ; (omega_q = 6.857e-12*i)
WARNING, 1 imaginary frequencies at q = ( 0.00,  0.00,  0.00) ; (omega_q = 6.857e-12*i)